Furnace-jacket.



G. A. FISCHER.

FURNACE JACKET.

APPLICATION FILED 00T.l4, 1911.

Patented Dec. 26,1911;

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O O 0 0 O O O O 0 7 JNVEN'EU WITNESSES-" ATTURN EY- COLUMBIA PLANOGRAPH co., WASHINGTON. D. c.

G. A, FISCHER.

FURNACE JAGKET.

APPLICATION FILED 00'1'.14,1911.

Patented Dec.26, 1911.

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, V ATTDRNEY.

COLUMBIA PLANbGnAPn CO.,WASIIINGTON. n. c

UNITED STATES PATENT. OFFICE.

CHARLES FISCHER, OF CHICAGO, ILLINOIS, ASSIGNOR TO ALLIS-CHALMERS COM- PANY, oriMILwAUKnn, WISCONSIN, A CORPORATION on NEW JERSEY.

v Specification of Letters Patent.

FURNACE-JACKET.

Patented Dec. 26, 1911.

To all whom it may concern:

Be it known that I, CrrAnnnsA. FIsoI-IER,

a citizen of the United States, residing at- Chicago, in the county ofC'ook and State of Illinois, have invented a certain new and useful Improvement inFurnace-Jackets, of which the following is a specification.

This invention relates to improvements in the construction of smelting furnaces for ores, and particularly to improvements in the construction of the water j acketsof ore smelting furnaces.

The object of the invention is to provide a water jacket for smelting furnaces such as cupolas, blast or similar furnaces, which is formed in a plurality of sections each of which" is' supported or retained by an independent truss. of jacket sections and trusses, the independent jacket sections and the adjacent trusses can be removed at will without disturbing the remaining jacket sections.

Another object is to provide a truss for each of the jacket sections which is disconnected therefrom, thereby permitting the renewal of the jacket section without necessitating renewal of the retaining truss thereof.

A clearconception of an embodiment of the invention can be had by referring to the accompanying drawings forming a part of this specification, in which drawings like reference characters designate the same or similar parts in the various views.

Figure 1 is a general arrangement, partly in section, of a smelting furnace having one form of the invention embodied therein. Fig. 2 is an enlarged end view of one of the jacket sections and its retaining truss. Fig. 3 is a side view of one of the jacket sections and its retaining truss.

The smelting furnace, see Fig. 1, consists essentially of a smelting chamber and a foundation or base 7 upon which the ele ments formingv the smelting chamber are supported. The smelting chamber is formed by a series of jacket sections 1, 10,

placed side by side and forming an elongated rectangular chamber. Each of the With this arrangement provided with a series of branch pipes adapted to supply the cooling water to the jacket sections 1, 10, duringnormal operation of the furnace. The jacket sections 1, 10, are retained in a substantially vertical position by means of retaining trusses, there being an individual truss for each jacket section 1. The upper ends of the jacket sections coact with the upper portion 11 of the furnace wall, the lower ends resting upon the foundation or'base 7 The 1IIdl-,'

cesses formed in the base 7 while the upper ends are retained by means of clamps or jack screws 12; The trusses can be easily removed by withdrawing the jack screws 12 and raising the truss bodily out of the recess 7. After removal of the truss, the

jacket sections 1, 10, against which the truss normally coacts, can be. readily removed. On account of the relatively short width of the ends of the smelting chamber, it being customary to form these ends of only two jacket sections 10, it may be desirable to have the truss or retaining member for the end jacket sections 10 common to both of them. The reason for such construction is that in removing the end jacket sections it is usually desirable to remove both sections at the same time, the construction therefore being simplified by having a common truss instead of individual trusses.

It will be seen that with the construction of jackets having an independent truss for retaining each of the jacket sections, any

one of the sections can be easily removed W without disturbing the retaining trusses of any of the other sections. It will also be seen that by having the trusses disconnected from the jacket sections, the individual jacket sections can be removed and replaced by new ones if desired without replacing the corresponding jacket truss. As the jacket sections 1, 10, often become disabled and need'replacing, the latter feature is a very important one since it permits the contlnuous use of a truss until the truss is no longer fit for use.

It should be understood that it is not desired to be limited to the exact details of construction shown and described,-for obvious modifications Will occur to a person skilled in the art.

It is claimed and desired to secure by Letters Patent,

1. In a furnace, a plurality of jacket sections and an independent truss for retaining each of said sections innormal position.

2. In a furnace, a plurality of jacket sections forming a smelting chamber, and an individual truss for retaining each of said jacket sections in normal position.

Copies of this patent may be obtained for 3. In a furnace, a plurality of jacket sections forming a smelting chamber, and a truss in contact With each of said jacket sections, said truss being independent of and disconnected from the adjacent section.

4. In a furnace, a plurality of jacket sections forming a smelting chamber, and an individual truss for retaining each of said jacket sections in normal position, at least independently of the adjacent sections.

In testimony whereof, the signature of the inventor is afiixed hereto in the presence of two Witnesses.

CHAS. A. FISCHER.

Witnesses:

THOMAS A. DALEY, J. M. GERAGHTY.

five cents each, by addressing the Commissioner of Patents, Washington, .D. G.

one of said jacket sections being removable 

